Ventura County District Attorney Gregory Totten says a 2005 BMW sedan registered to the actress and her ex-husband, Richard Sambora, knocked down a no-parking sign and drove off on April 17 in Thousand Oaks.

Locklear was later cited for misdemeanor hit-and-run.

In a statement Wednesday, Totten said there’s not enough evidence to determine who was driving.

A call to Locklear’s attorney, Blair Berk, was not immediately returned Thursday.

The 48-year-old ‘Melrose Place‘ star has a previous arrest for driving under the influence of prescription drugs; she pleaded guilty last year to a lesser charge of reckless driving.

See Heather Locklear in ‘Melrose Place’:

We're sorry, but this content is not available to your web browser.

Copyright 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed